• Title/Summary/Keyword: Y197-13

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Endothelium Independent Effect of Pelargonidin on Vasoconstriction in Rat Aorta

  • Min, Young Sil;Yoon, Hyuk-Jun;Je, Hyun Dong;Lee, Jong Hyuk;Yoo, Seong Su;Shim, Hyun Sub;Lee, Hak Yeong;La, Hyen-Oh;Sohn, Uy Dong
    • Biomolecules & Therapeutics
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    • v.26 no.4
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    • pp.374-379
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    • 2018
  • In this study, we investigated the effects of pelargonidin, an anthocyanidin found in many fruits and vegetables, on endothelium-independent vascular contractility to determine the underlying mechanism of relaxation. Isometric contractions of denuded aortic muscles from male rats were recorded, and the data were combined with those obtained in western blot analysis. Pelargonidin significantly inhibited fluoride-, thromboxane A2-, and phorbol ester-induced vascular contractions, regardless of the presence or absence of endothelium, suggesting a direct effect of the compound on vascular smooth muscles via a different pathway. Pelargonidin significantly inhibited the fluoride-dependent increase in the level of myosin phosphatase target subunit 1 (MYPT1) phosphorylation at Thr-855 and the phorbol 12,13-dibutyrate-dependent increase in the level of extracellular signal-regulated kinase (ERK) 1/2 phosphorylation at Thr202/Tyr204, suggesting the inhibition of Rho-kinase and mitogen-activated protein kinase kinase (MEK) activities and subsequent phosphorylation of MYPT1 and ERK1/2. These results suggest that the relaxation effect of pelargonidin on agonist-dependent vascular contractions includes inhibition of Rho-kinase and MEK activities, independent of the endothelial function.

'Studies on the Synthesis of Cyclitol derivatives' -Synthesis of Inositols, p-Hydroxybenzoates and thier Antimicrobial test for food industry ('Cyclitol 유도체(誘導體) 합성(合成)에 관(關)한 연구(硏究)' -Inositol stereomer 와 p-Hydroxybenzoate의 합성(合成)과 식품공업상(食品工業上) 응용(應用)을 위한 항균시험(抗菌試驗)-)

  • Sohn, Joo-Hwan
    • Applied Biological Chemistry
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    • v.13 no.3
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    • pp.197-205
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    • 1970
  • Inositols are cyclohexanehexol and they have been known to be nine stereomers. Scyllo-inositol, epi-inositol and muco-inositol could be synthesized from myo-inositol. Scyllo-inositol and epi-inositol were obtained by oxidation and reduction process from myo-inositol. Myo-inositol and epi-inositol were oxidized by treatment, in solution, with dilute hydrogen peroxide. In all cases, only axial hydroxyl groups were oxidized and monoketons were obtained. Reduction of myo-inosose-2 with sodium boron hydride was carried out in $pH2{\sim}3.$ The reduction products were equatorial alcohol but: reduction of DL-epi-inosose-2 by catalytic reduction produced axial alcohol obtained. Inositol could be esterified. Hexa-O-(p-hydroxy benzoyl)-esters of myo-inositol, scyllo-inositol, epi-inositol and muco-inositol were synthesized and their antimicrobial action on microbes were tested for application to food industry. As the results, it was found that the activities of muco-inositol ester was more vigorous than others.

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Survey of Disease Frequency in Holstein Dairy Cattle and Korean Native Cattle in the Chungbuk Area of Korea (국내 Holstein 젖소와 한우의 질병 발생 양상에 대한 조사 연구 - 충북지역을 중심으로 -)

  • Cho, Hyun-Ju;Park, Myung-Ho;Lim, Young-Chul;Jeong, Sam-Yong;Shin, Jeong-Kyun;Jeong, Seong-Mok;Seo, Kang-Moon
    • Journal of Veterinary Clinics
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    • v.20 no.2
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    • pp.185-197
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    • 2003
  • This survey was performed to investigate frequency of clinical disease in Holstein dairy cattle and Korean native cattle in Chungbuk region of Korea. This study was conducted with the veterinary clinical charts recorded by veterinarians in an animal hospital for 387 Holstein herds(14,701$\pm$1,766 head) and 180 Korean native cattle herds(1,440$\pm$786 head) from October 1998 to September 2001. The prevalent disease classes in Holstein dairy cattle were digestive systems(26.84%), reproductive system(22.48%), locomotor system(21.43%) and metabolic disorders(10.08%). The locomotor diseases were increased with 1st year, 16.27%, 2nd year, 20.93% and 3rd year, 27.08%. The dieases of digestive and reproductive system occurred frequently in winter season(30.01%, 26.03% respectively) and the disease frequency of locomotor system were very high in fall(28.44%). The predominant diseases of Holstein dairy cattle were : claw overgrowth(13.58%), indigestion(11.23%), functional infertility(8.77%), metritis(8.28%), foot diseases(7.35%), LDA (6.57%) and ketosis(5.76%). The prevalent disease classes in Korean native cattle were digestive system(43.80%), respiratory system(28.11%) and reproductive system(10.69%). Seasonally, digestive diseases occurred frequently in spring (51.55%), whereas respiratory diseases occurred frequently in winter (39.60%). The predominant diseases in Korean native cattle were calf diarrhea(32.03%), calf pneumonia(21.79%), indigestion(8.26%), dystocia(7.65%) and pneumonia(5.90%).

The Study on the Characteristic of Physical Touch in Caring Situation (돌봄상황에서 신체적 접촉의 특성에 관한 연구)

  • Chang Sung-Ok
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.2 no.2
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    • pp.183-197
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    • 1995
  • This study was performed to investigate the characteristic of physical touch in caring situation. The subjects of this study were adults in caring situation, therefore they were composed of 7 patients, 6 nurses, 3 doctors, 3 pharmacologists, 3 men in paramedicine area, 3 nursing educators and 13 normal general adults. The datas were gathered through nonstructured questionaire from June, 20th to September, 15th in 1995. The datas were subjects' descriptions about the intention, perception, and form of physical touch in caring situation and analysed by content analysis. The results as follow : The datas were divided into four areas. There were the situation being necessiated the physical touch, meaning of physical touch, form of physical touch and perception about physical touch in caring situation. The situation being necessiated physical touch were the situation that required physical treatment, to deliver the active expression of concern about the patients, to determine the treatment due to the identification of physical condition of patients and to induce the psychological eqilibrium into patient's mind. The meanings of physical touch in caring situation were - Good meanings that intention is to encourage, to be have hope about health and to deliver the affection willing to help patient. - therapeutic methods that were to facillitate the circulation of blood, to reduce the pain perception and to facillitate the circulation of qi. - interpersonal affectionate relation that the intentions were to deliver the understanding of patient's pain, were to delivery the meaning to the patient not be alone. The forms of physical touch in caring situation were none invasive forms just like laying hands on hand, head, shoulder, gentle knocking on the shoulder or back, massage of legs and back and finger pressure on acupuncture points. The perception of physical touch in caring situation divided into two parts. In family, the perceptions of physical touch in caring situation were to promote health status because physical touch induce the psychological peace, and to evoke the importance of relationship among family members. In relation with care giver, perception of physical touch in caring situation were inevitable process in treatment, and to deliver the trust and concern about patients.

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Intergenerational Transmission of Mother-Daughter Attachment and Unmarried Adult Daughter's Ego-Resiliency (모녀애착의 세대 전수와 성인 미혼 딸의 자아탄력성)

  • Im, Kyoung-Ei;Chun, Young-Ju
    • Journal of Families and Better Life
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    • v.27 no.1
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    • pp.197-208
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    • 2009
  • The purpose of this study is to examine the intergenerational transmission of mother-daughter attachment across three generations, and to determine whether the mother-daughter attachment of three generations influences the adult daughter's ego-resilience. The subjects of this study were 310 unmarried adult women aged 20${\sim}$29, residing in the Busan area, and their 310 middle-aged mothers. The mothers responded to two sets of questionnaire investigating their attachment to their mothers (G1-G2) in the past and the present attachment to their adult daughters (G2-G3). Meanwhile, the adult daughters were given questionnaires regarding their attachment to their mothers and their ego-resiliency. The measurements used for this study were the Inventory of Parent and Peer Attachment (IPPA) and the Ego-Resiliency Scale (ER). Among the distributed questionnaires, 265 sets were collected and 252 sets were actually analyzed using SPSS 12.0 after 13 sets had been excluded due to incomplete data. Basic statistics were used such as frequency analysis, Pearson's correlation and hierarchical regression analysis. The study results were as follows. First, the adult daughter-mother (G2-G3) attachment was explained mostly by mother-grandmother (G1-G2) attachment, daughter's age, and economic status of the family. The strongest factor was the mother-grandmother attachment which implies the transmission of attachment through generations. Second, among the factors that influenced the ego-resilience of an unmarried adult daughter, attachment to one's mother perceived by the daughter turned out to be the most significant. Especially, the more positive the adult daughter's emotion toward her mother and the higher the daughter's education, the stronger the ego-resilience of the adult single daughter was. It was concluded that the mother-daughter attachment remained consistent throughout three generations, which influenced the social-psychological adjustment of the adult unmarried daughter.

A Study on the Policy Tasks for the Development of National Fire Service - Redesigning Institutional and Organizational Improvement for the Establishment of the National Fire Service Agency - (한국소방발전을 위한 정책과제 연구 - 소방청 신설에 대응하는 제도·조직개선 구상 -)

  • Choi, Byoung-Hahk;Kim, Hak-Soo
    • The Korean Journal of Emergency Medical Services
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    • v.6 no.1
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    • pp.185-197
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    • 2002
  • Today, the basic problem of functional safe management of Korean Disaster Control system was separately administrated 33 acts that are relating to safe management in 13 ministries. Because of the facts that the fire service is not provided practically, the control system and risk management for safe administration are not operated, the information can not be shared with each other, and the various laws have the lacks of linkage, the National Safe System was appeared unsteady. The roles and functions of fire service have started with restriction to operate structurally and institutionally, which operational structure of fire service is becoming weak. As a result, the federal and local fire organizations have not reached yet to the institutionalization and the local fire service agencies have bias with the task regarding the fire service because of the relation between organizational structure and the local fire agency. With the enforcement of the federal and local fire system, professionality and autonomy for making policy, and dealing with changes of fire service positively, the national fire service on the policy performance can be established. Promotion of research and development and education training to strengthen innovation in technology and competition in fire industry will contribute to the firmly establishment of control system to prevent from fire, flood, terror and national disaster. This article proposed that (a) the established law and administration, agency are required efforts to effectively operate fire service system; (b) the national fire service agency, national college of fire, national institute of science fire, and national fire service hospital should be early established to make firmly policy to operate effectively and practically. These kinds of innovational acts are known the best ways of operating solid policy of national fire service system.

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Water Extract from Rice Bran Fermented with Lactobacillus plantarum Hong Inhibits Thromboxane A2 Production Associated Microsomal Enzyme Activity in Human Platelets

  • Kim, Hyun-Hong;Hong, Jeong Hwa;Ingkasupart, Pajaree;Lee, Dong-Ha;Yeo, DaNa;Park, Hwa-Jin
    • Biomedical Science Letters
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    • v.21 no.4
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    • pp.188-197
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    • 2015
  • In this study, we investigated the effect of rice bran water extract fermented with Lactobacillus plantarum Hong (RBLw), on activities of cyclooxygenase-1 (COX-1) and thromboxane $A_2$ synthase (TXAS), thromboxane $A_2$ ($TXA_2$) production associated microsomal enzymes and evaluated its the antiplatelet effect. RBLw, containing 13.5 mg of ferulic acid, dose-dependently inhibited ADP-induced platelet aggregation, and inhibited the production of $TXA_2$, an aggregation molecule. In addition, RBLw directly inhibited COX-1 activity in a dose-dependent manner, but not TXAS activity in platelet microsomal fraction having cytochrome c reductase (an endoplasmic reticulum marker enzyme) activity and expressing COX-1 (72 kDa) and TXAS (60.5 kDa) proteins. These results suggest that RBLw selectively inhibited the activity of COX-1 rather than TXAS to attenuate $TXA_2$ production in ADP-activated platelets. Thus, we demonstrate that RBLw might have direct COX-1 antagonistic function for platelet aggregation-mediated diseases, such as thrombosis, myocardial infarction, atherosclerosis, and ischemic cerebrovascular disease.

Optimal Culture Conditions for Production of Yellow Pigments from Monascus purpureus in Liquid Culture (액체 배양에 의한 Monascus purpureus가 생산하는 황색색소의 최적 생산조건)

  • Choi Chung-Sig;Jeon Chun-Pyo;Lee Jung-Bok;Lee Oh-Seuk;Rhee Chang-Ho;Kwon Gi-Seok
    • Food Science and Preservation
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    • v.13 no.2
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    • pp.192-197
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    • 2006
  • The optimum cultural conditions for production of yellow pigment by Monascus purpureus MMK2 were investigated in liquid culture. Monascus purpureus MMK2 was shown to give the maximum production of yellow pigment in the medium containing of 3.0% wheat flour, 0.15% $NaNO_3$, 0.25% $Na_2HPO_4\;12H_2O\;and\;0.15%\;MgSO_4\;7H_2O$. The optimal culture conditions for temperature and initial pH were $30^{\circ}C$ and 6.5, respectively. The yellow pigment production reached a maximum level at the 7th day of cultivation.

Ameliorating Effects of Herbal Ethanol Extract from Gynostemma pentaphyllum on Chronic Stress-Induced Anxiety in Mice (돌외 에탄올 추출물 엑스의 만성 스트레스-유도 불안작용에 대한 개선작용)

  • Choi, Hyun-Sook;Shin, Kun-Seong;Choi, Soon-Ok;Kim, Seung-Hwan;Hwang, Bang-Yeon;Lee, Chong-Kil;Lee, Myung-Koo
    • Korean Journal of Pharmacognosy
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    • v.42 no.1
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    • pp.32-37
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    • 2011
  • The effects of herbal ethanol extract from Gynostemma pentaphyllum (GP extract) on chronic stress-induced anxiety in mice were investigated. The animals were treated with GP extracts (50 and 100 mg/kg/day, p.o.) for 21 days before exposure to electric footshock (EF; duration and interval 10 sec for 3 min, 2 mA) for chronic stress once a day. The ambulatory locomotor activity was reduced by chronic EF stress and it was recovered by 12.9-15.1% in GP extract-treated groups. The grip strength was also significantly decreased by chronic EF stress, however, the EF-stressed groups treated with GP extract increased grip strength from 13.9% to 56.8% compared to EF-stressed groups. In addition, the serum levels of corticosterone were significantly elevated by chronic EF stress to 197% of the control levels, which was reduced to 73.1% by treatment with GP extract (100 mg/kg). In contrast, the brain levels of dopamine and serotonin were reduced to 67.6% and 63.1% by chronic EF stress, which was recovered to 90% of the control levels by treatment with GP extract. These results indicate that GP extract shows the ameliorating effects on chronic EF stress-induced anxiety in mice and it can be developed as the promising anti-anxiety agent.

Characteristics of Work-related Musculoskeletal Disorders Compensated by the Industrial Accident Compensation Insurance in Shipbuilding Industry (조선업에서 산업재해로 인정된 근골격계질환의 특성)

  • Kim, Sang Woo;Shin, Yong Chul;Kang, Dongmug
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.15 no.2
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    • pp.114-123
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    • 2005
  • We analyzed the demographic and job features of 197 shipyard workers with work-related musculoskeletal disorders(WMSDs) compensated by the Industrial Accident Compensation Insurance Act, and the features of the disorders, the causes of operation and the induced behaviors. The three shipbuilding companies surveyed were located in Busan Metropolitan city and Gyungsangnam-do. The results were as follows. 1. The ages of WMSDs patients in shipyard were $43.6{\pm}8.6$ and the job tenure was $14.3{\pm}5.6$. The 40's of them was 40.1%, and the 30's was 29.4%. Patients less than 5 year-work duration were 85.3%, and ones more than 16 year-work duration 6.6%. In occupations, welders were 32.5%, pre-welders 17.3%, and setting engineers 6.6%. 2. The causes of WMSDs in shipyard were works(95.4%) and outer crash or accident shock (3.6%). Based on the standard of the NIOSH induced behaviors, the causes were awkward posture (62.9%), excessive movement(19.3%) and repetitive movement(13.7%). 3. The compensated WMSDs by body part was the highest, 36%, in the spines, 32.0% in both the upper limbs and the spines, and 14% in the upper limbs. The number of cases of WMSDs in body were 96 in the cervical, 79 in the lumbar and 72 in the shoulders. 4. As a result of chi-square test(${\chi}^2$) between diagnosis and operation in body, welding and spot welding had the most diagnoses in all parts of the body among other occupations. Chi-square test(${\chi}^2$) between diagnosis and induced behavior in body showed that awkward postures recorded the highest rate and repetitive movements was the second. 5. The most hazardous occupation was the welding(incidence rate=9.7) and the most hazardous behavior was the awkward posture.